time frames. According to Nick Wauters, the show's creator, later episodes would use flashbacks more to develop the characters. "There will be big reveals and big clues in each episode," he said, promising that viewers would not have to wait too long for answers to questions raised. After the pilot aired, he and executive producer Steve Stark answered some viewer questions on their Twitter feeds, one being the fate of the plane used in the assassination attempt, which ended up disappearing through a portal before it could crash. The characters also have Twitter feeds, and one had a blog, truthseeker5314.com, which would reveal additional information. The last two episodes before and all episodes following the show's hiatus no longer featured flashbacks. Cast member Blair Underwood said regarding the removal of the flashbacks, "We had been jumping around a lot and doing flashbacks and that was confusing to people," and "So when we come back, that device is done with! We are now telling the story straight through so people can track it and follow it easier." Cast Main cast Jason Ritter as Sean Walker – a software engineer who becomes involved in a government conspiracy when his would-be fiancée, Leila, mysteriously disappears during their Caribbean cruise. Sean later finds Leila and the two begin to uncover the conspiracy. Sarah Roemer as Leila Buchanan – Sean's girlfriend, who is kidnapped. After being rescued, she tries to find her younger sister who has also been kidnapped. It is revealed that she and her little sister are half non-terrestrial as their father, Michael Buchanan, was one of the survivors of the 1944 crash. Laura Innes as Sophia Maguire – the leader of a mysterious extraterrestrial group of detainees being held at the top-secret facility. She becomes a critical liaison to the President of the United States amidst the cover-up. Blair Underwood as Elias Martinez – the recently elected President of the United States, who is stunned to learn that his own government is keeping secrets from him. As he tries to do right by the public, he soon finds himself in the midst of the cover-up, and the target of an assassination attempt. Ian Anthony Dale as Simon Lee – a CIA operative and an extraterrestrial who was stationed at Mount Inostranka. Scott Patterson as Michael Buchanan – Leila's father, who is thrown into the conspiracy and must go through great lengths to